Basic information
- CAS
1609-47-8- Standard SMILES
CCOC(=O)OC(=O)OCC- InChIKey
FFYPMLJYZAEMQB-UHFFFAOYSA-N- Molecular formula
- C6H10O5
- Average molar mass
- 162.14 g/mol
- Monoisotopic mass
- 162.05282342
Overview
Diethyl pyrocarbonate is the diethyl ester of dicarbonic acid. It is functionally related to a dicarbonic acid.
Names & identifiers
- Preferred name
- Diethyl Pyrocarbonate
- IUPAC
- ethoxycarbonyl ethyl carbonate
- English name
- Diethyl pyrocarbonate
- Molecular formula
- C6H10O5
- Molecular weight
- 162.14
Names & synonyms
Show more names
Database identifiers
- CAS
1609-47-8- PubChem CID
- 3051
- DTXSID
DTXSID2051764- ChEMBL
CHEMBL55517- ChEBI
CHEBI:59051- UNII
- LMR3LZG146
- EC Number
- 216-542-8
- Nikkaji
- J13.055I
Properties
Computed structural properties
- XLogP
- 1.4
- Topological polar surface area
- 61.8 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 5
- Rotatable bonds
- 6
- Heavy atoms
- 11
- Formal charge
- 0
- Complexity
- 126
Experimental & physicochemical properties
Physical Description
Viscous liquid with a fruity odor. [Merck Index] Clear colorless liquid; [Sigma-Aldrich MSDS]
Solid
Physicochemical properties
- Melting point
- 69 ℃ · 69℃
- Boiling point
- 93 · 93-94 °C18 mm Hg(lit.)
- Density
- 1.12 g/mL · 1.12 g/mL at 20 °C
- refractive index
- 20 · n20/D 1.398(lit.)
- Flash point
- 157 °F · 157 °F
- storage temp.
- 2 · 2-8°C
- solubility
- 95 % · 95% ethanol: soluble4.5g/10 mL, clear, colorless
- form
- Liquid
- color
- 20 · APHA: ≤20
- biological source
- synthetic (microbial fermentation/ cell culture)
- Water Solubility
- slow decomposition
- Sensitive
- Moisture Sensitive
- Merck
- 14 · 14,7998
- BRN
- 637031 · 637031
- Stability
- Combustible. Unstable - readily decomposes. Incompatible with strong oxidizing agents, strong acids, strong reducing agents, strong bases, ammonia.
- InChI
- 1S/C6H10O5/c1-3-9-5(7)11-6(8)10-4-2/h3-4H2,1-2H3
- InChIKey
- FFYPMLJYZAEMQB-UHFFFAOYSA-N
- SMILES
- CCOC(=O)OC(=O)OCC
- LogP
- 1.101 · 1.101 (est)
- CAS DataBase Reference
- 1609 · 1609-47-8(CAS DataBase Reference)
- Substances Added to Food (formerly EAFUS)
- DIETHYL PYROCARBONATE-- PROHIBITED
- FDA 21 CFR
- 189.14 · 189.140
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 3 LZG146 · LMR3LZG146
- NIST Chemistry Reference
- Diethyl pyrocarbonate(1609-47-8)
- EPA Substance Registry System
- Dicarbonic acid, diethyl ester (1609-47-8)
- UNSPSC Code
- 12352202 · 12352202
- NACRES
- 77 · NA.77
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 302 · H302
- Precautionary statements
- 264 · P264-P270-P301+P312-P501
- Hazard Codes
- Xn
- Risk Statements
- 22 · 22-36/37/38-20/21/22
- Safety Statements
- 26 · 26-36-37/39
- RIDADR
- 2810 · 2810
- WGK Germany
- 3 · 3
- RTECS
- 9350000 · LQ9350000
- F
- 4.4 · 4.4-9-21
- TSCA
- TSCA listed
- HazardClass
- 6.1 · 6.1(b)
- PackingGroup
- III
- HS Code
- 29209085 · 29209085
- Storage Class
- 10 · 10 - Combustible liquids
- Hazard Classifications
- 4 Oral · Acute Tox. 4 Oral
- Toxicity
- 50 orally · LD50 orally in Rabbit: 850 mg/kg
- Excepted Quantities
- Non-Hazardous
Safety & regulation
GHS classification
GHS Classification
Warning
H302 (93.5%): Harmful if swallowed [Warning Acute toxicity, oral]
P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 93 reports by companies from 14 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Dicarbonic acid, diethyl ester
Diethyl dicarbonate: Does not have an individual approval but may be used under an appropriate group standard
Hazards Summary
Causes dyspnea in inhalation lethal-concentration studies of guinea pigs, mice, and rabbits (LCLo = 10 ppm/1hr); [RTECS] Slowly decomposed by water forming ethanol and carbon dioxide; A skin, eye, and mucous membrane irritant; [Merck Index] A skin and strong eye irritant; Harmful by ingestion; [Sigma-Aldrich MSDS]
Safety & protection
Protective Action Criteria (PAC)
4.1 [mg/m3]
45 [mg/m3]
270 [mg/m3]
Toxicology
Safety data
- F
- 4.4-9-21
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- LQ9350000
- ridadr
- 2810
- hs_code
- 29209085
- Toxicity
- LD50 orally in Rabbit: 850 mg/kg
- risk_code
- 22-36/37/38-20/21/22
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xn
- safety_code
- 26-36-37/39
- hazard_class
- 6.1(b)
- Storage Class
- 10 - Combustible liquids
- packing_group
- III
- Hazard statements
- H302
- Excepted Quantities
- Non-Hazardous
- Hazard Classifications
- Acute Tox. 4 Oral
- Precautionary statements
- P264-P270-P301+P312-P501
Chemistry & industry
Pharmacology
Uses & manufacturing
Uses
Used as a preservative in wines, soft drinks, and fruit juices; [Merck Index] Used as a laboratory reagent; [REPROTOX]
Banned for use as a food additive; [FDA]
Applications
UsesModification reagent for His and Tyr residues in proteins. Robust probe for structural disruptions in dsDNA, reacting with fully or partially unstacked bases.1
UsesDiethyl pyrocarbonate may be used in the following studies:For the modification of histidyl residues in proteins.As a nuclease inhibitor, for the extraction of undegraded nucleic acids from etiolated and green plant tissues.For the modification of linear and supercoiled plasmid DNAs.As a chemical probe to investigate the secondary structure in negatively supercoiled DNA.For cabethoxylation of histidine residues of actin.
UsesGentle esterifying agent. Preservative for wines, soft drinks, fruit juices.
General DescriptionDiethyl pyrocarbonate (DEP) is a bactericidal agent and decomposes in water to CO2 and ethanol. DEP inhibits enzymes such as DNase and RNase without affecting nucleic acids. It is useful for the preparation of mRNA from tissues.
Upstream & downstream products
Downstream products
Suppliers100 total
Additional notes
DefinitionChEBI: The diethyl ester of dicarbonic acid.
Related reactions
Compound notes
Loading…